<template>

  <!-- 商品详情 -->
  <div class="goodsinfo-container">
      <!-- 购物车小球的绘制 -->
      <transition
      @before-enter="beforeEnter"
      @enter='enter'
      @after-enter='afterEnter'
      >
      <div class="ball" v-show='ballFlag' ref=ball></div>
      </transition>
    <!-- 图片部分轮播图 -->
    <div class="mui-card">
      <div class="mui-card-content">
        <div class="mui-card-content-inner">
          <!-- 轮播图 -->
          <swiper :lunbotuList="lunbotuList" :isfull="false"></swiper>
        </div>
      </div>
    </div>
    <!-- 商品信息 -->
    <div class="mui-card">
      <div class="mui-card-header">商品的名称</div>
      <div class="mui-card-content">
        <div class="mui-card-content-inner">
          <p class="price">市场价：
            <del>￥{{ goodsinfo.market_price }}</del>&nbsp;&nbsp;销售价：
            <span class="now_price">￥{{ goodsinfo.sell_price }}</span>
          </p>
          <div>购买数量：
            <numbox @getcount="getSelectedCount" :max="goodsinfo.stock_quantity"></numbox>
          </div>
          <p>
            <mt-button type="primary" size="small">立即购买</mt-button>
            <mt-button type="danger" size="small" @click="addToShopCar">加入购物车</mt-button>
          </p>
        </div>
      </div>
    </div>
    <!-- 商品参数 -->
    <div class="mui-card">
      <div class="mui-card-header">商品参数</div>
      <div class="mui-card-content">
        <div class="mui-card-content-inner">
          <p>商品货号：{{ goodsinfo.goods_no }}</p>
          <p>库存数量：{{ goodsinfo.stock_quantity }}件</p>
          <p>上架时间：{{ goodsinfo.add_time | dateFormat }}</p>
        </div>
      </div>
      <div class="mui-card-footer">
        <!-- 图文介绍 -->
        <!-- 商品评论 -->
        <mt-button type="primary" size='large' plain @click="goDesc(id)">图文介绍</mt-button>
        <mt-button type="danger" size='large' plain @click='goComment(id)'>商品评论</mt-button>
      </div>
    </div>
  </div>
</template>
<script>
import numbox from "../subComponents/Goodsinfo_numbox.vue";
import swiper from "../subComponents/Swiper.vue";
export default {
  data() {
    return {
      id: this.$route.params.id, //获取路由传过来的id
      lunbotuList: [], //轮播图数据
      goodsinfo: {}, //获取商品详情数据
      selectedCount: 1, //选中的商品数量
      ballFlag:false//控制小球的显示
    };
  },
  created() {
    this.getLunbotuList();
    this.getGoodsinfo();
  },
  methods: {
    getLunbotuList() {
      this.$http.get("getphoneimages/" + this.id).then(result => {
        console.log(result.body);
        if (result.body.status === 0) {
          result.body.data.forEach(item => {
            item.img = item.src;
          });
          this.lunbotuList = result.body.data;
        }
      });
    },
    getGoodsinfo() {
      //获取商品详情信息
      this.$http.get("getinfo/" + this.id).then(result => {
        console.log(result.body);
        if (result.body.status === 0) {
          this.goodsinfo = result.body.data[0];
          console.log(this.goodsinfo);
        }
      });
    },
    getSelectedCount(count) {
      //获取子组件传递的最新选购数量
      this.selectedCount = count;
      console.log("父组件拿到的数值是：" + this.selectedCount);
    },
    goDesc(id){//进入图文介绍页面
        this.$router.push({name:'goodsdesc',params:{id}});
    },
    goComment(id){//进入评论界面
        this.$router.push({name:'goodscomment',params:{id}})
    },
    beforeEnter(el){
        el.style.transform = "translate(0,0)";
    },
    enter(el,done){
        el.offsetWidth;
        const ballPosition = this.$refs.ball.getBoundingClientRect();
        const badgePosition = document.getElementById("badge").getBoundingClientRect();
        const xDist = badgePosition.left - ballPosition.left;
        const yDist = badgePosition.top - ballPosition.top;
        el.style.transform = `translate(${xDist}px,${yDist}px)`;
        el.style.transition = 'all 0.5s cubic-bezier(.4,-0.3,1,.68)';
        done();
    },
    afterEnter(el){
        this.ballFlag = !this.ballFlag;
    },
    addToShopCar(){
        this.ballFlag = !this.ballFlag;
        //拼接一个商品对象，保存到store中
        var goodsinfo = {
          id: this.id,
          count: this.selectedCount,
          price: this.goodsinfo.sell_price,
          selected: true
        }
        this.$store.commit('addToCar',goodsinfo);
    }
  },
  components: {
    swiper,
    numbox
  }
};
</script>
<style lang="scss" scoped>
.goodsinfo-container {
  background-color: #eee;
  overflow: hidden;
  //商品信息
  .price {
    .now_price {
      color: red;
      font-size: 16px;
      font-weight: bold;
    }
  }
  .mui-numbox {
    margin-bottom: 10px;
  }
  .mui-card-footer{
      display: block;
      button{
          margin:10px 0;
      }
  }
  .ball{
      width: 15px;
      height: 15px;
      border-radius: 50%;
      background:red;
      position:absolute;
      z-index: 99;
      top:390px;
      left:152px;
  }
}
</style>

